Home / 26,142.88-39,240.24-21,269.92

Finding the Fourth Proportional to 26,142.88, 39,240.24 and 21,269.92

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Solution

The fourth proportional to 26,142.88, 39,240.24 and 21,269.92 is: 31,925.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.88 : 39,240.24 = 21,269.92 : x
  2. Step 2: Convert to fraction form
    26,142.88/39,240.24 = 21,269.92/x
  3. Step 3: Cross multiply
    26,142.88x = 39,240.24 × 21,269.92
  4. Step 4: Simplify right side
    26,142.88x = 834,636,765.58
  5. Step 5: Solve for x
    x = 834,636,765.58/26,142.88
  6. Step 6: Final answer
    x = 31,925.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.